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A306259 as a simple table

n a(n)
1 21
2 105
3 165
4 205
5 231
6 273
7 301
8 341
9 385
10 465
11 561
12 609
13 645
14 651
15 861
16 889
17 903
18 1045
19 1065
20 1105
21 1265
22 1281
23 1365
24 1387
25 1491
26 1705
27 1729
28 1771
29 1785
30 1905
31 2041
32 2047
33 2145
34 2211
35 2265
36 2329
37 2359
38 2373
39 2465
40 2485
41 2665
42 2667
43 2701
44 2821
45 3045
46 3081
47 3165
48 3171
49 3201
50 3277

[21,105,165,205,231,273,301,341,385,465,561,609,
 645,651,861,889,903,1045,1065,1105,1265,1281,1365,
 1387,1491,1705,1729,1771,1785,1905,2041,2047,2145,
 2211,2265,2329,2359,2373,2465,2485,2665,2667,2701,
 2821,3045,3081,3165,3171,3201,3277]

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Last modified April 25 09:56 EDT 2024. Contains 371967 sequences. (Running on oeis4.)